package com.wcj.linktable.classicquestion;


import com.wcj.linktable.ListNode;

public class 反转链表 {


    public ListNode reverseList(ListNode head) {
        ListNode pre = null;
        ListNode cur = head;
        while (cur != null){
            ListNode next = cur.next;
            cur.next = pre;
            pre = cur;
            cur = next;
        }
        return pre;

    }
}
